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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Cold bore shot vs dirty bore shot
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<blockquote data-quote="Bart B" data-source="post: 643782" data-attributes="member: 5302"><p>It's been my experience that most factory barrels are a bit rough and it takes a few fouling shots to fill in their micro pits until jacket material no longer gets scraped off bullets and unbalances them.</p><p></p><p>On the other hand, top quality match barrels are lapped smooth enough that the first shot from a clean barrel and subsequent shots are within 1/4 MOA of each other. This happens from shot to long range and the vellcity diffrence between the first two and the rest of the 15 to 20 shots is usually less than 10 fps.</p></blockquote><p></p>
[QUOTE="Bart B, post: 643782, member: 5302"] It's been my experience that most factory barrels are a bit rough and it takes a few fouling shots to fill in their micro pits until jacket material no longer gets scraped off bullets and unbalances them. On the other hand, top quality match barrels are lapped smooth enough that the first shot from a clean barrel and subsequent shots are within 1/4 MOA of each other. This happens from shot to long range and the vellcity diffrence between the first two and the rest of the 15 to 20 shots is usually less than 10 fps. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Cold bore shot vs dirty bore shot
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